CN220739424U - Automobile engine support die casting die side structure of loosing core - Google Patents

Abstract

The utility model discloses a side core pulling structure of an automobile engine support die casting die, which belongs to the field of die casting and comprises a movable die fixing plate, a fixed die fixing plate, a movable die plate, a fixed die plate, a core, a cavity and a material injection port. The steam that the cooling water produced in the cooling process outwards discharges through the exhaust block, avoids the pressure in the flow chamber too high, reduces the pressure influence that pipeline interface and hose received.

Description

Automobile engine support die casting die side structure of loosing core

Technical Field

The utility model relates to the field of die casting, in particular to a side core pulling structure of an automobile engine bracket die casting die.

Background

Die casting is a metal casting process that is characterized by applying high temperatures to molten metal using the mold cavity. The mold is typically fabricated from a stronger alloy, much like injection molding of plastic. Most die cast castings are typically free of iron, such as zinc, copper, aluminum, magnesium, lead, and alloys thereof. Depending on the type of die casting, either a cold chamber die casting machine or a hot die casting machine is required; the casting equipment and the die are high in cost, so that the die casting process is generally only used for manufacturing products in batches, die casting parts are relatively easy to manufacture, generally only four main steps are needed, the single cost is low, the die casting is particularly suitable for manufacturing a large number of small and medium-sized castings, the die casting is the most widely used one of various casting processes, and compared with other casting technologies, the die casting surface is smoother and has higher dimensional consistency.

Because the die-cast part belongs to an integrated molding scheme and has the advantages of high structural strength and the like, the die-casting technology is generally adopted to produce parts with high requirements on automobile reliability, such as an automobile engine bracket, but the engine bracket is provided with a central inclined hole structure, so that the inclined hole core-pulling problem needs to be solved by adopting a lateral core-pulling technology, in the prior art, the Chinese patent application No. CN201710287993.9 discloses a lateral core-pulling die-casting die in the die-casting field, and the part is molded through the lateral core-pulling structure in the forward and backward moving process of a moving die.

In the casting process, because the molten metal material is adopted to complete die casting, the temperature in the cavity is higher, and the size of the center hole of the automobile engine support is large, the side core of the side core-pulling structure is larger, cooling water is gasified in the cooling process, the pressure in the pipeline is higher, and the interface of the cooling pipeline is influenced.

Disclosure of Invention

The utility model aims to provide a side core-pulling structure of an automobile engine support die casting die, which has the advantage of reducing pressure rise in the side core-pulling structure.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a side core pulling structure of automobile engine support die casting die, includes movable mould fixed plate, cover half fixed plate, movable mould board, fixed mould board, core, die cavity and annotates the material mouth, the movable mould board sets up on the movable mould fixed plate, the fixed mould board sets up on the fixed mould fixed plate, core and annotate the material mouth setting on the fixed mould board, the die cavity sets up on the movable mould board, include

The side core pulling mechanism comprises a side core, a core pulling track, a connecting structure, a linear driving part and a support, wherein the side core is arranged between a molding surface of a core and a molding surface of a cavity, one side of the core pulling track in the width direction is formed by a concave surface of a fixed die plate, the other side of the core pulling track in the width direction is formed by a concave surface of a movable die plate, one end of the core pulling track in the length direction extends to the side core, the other end of the core pulling track in the length direction extends to the linear driving part, the support is arranged on the movable die plate, one end of the connecting structure is connected with the linear driving part, the other end of the connecting structure is connected with the core, the linear driving part is arranged on the support, and the linear driving part drives the core to move in the core pulling track through the connecting structure so that the core enters or leaves between the core and the cavity;

the waterway structure comprises an exhaust block, a water inlet, a water outlet and a flow cavity, wherein the flow cavity is arranged in the mold core, the flow cavity penetrates through the front end of the mold core to form an opening, the exhaust block is arranged on the opening, the water inlet and the water outlet are respectively arranged at the tail end of the mold core, and the water inlet and the water outlet are both communicated with the flow cavity.

Preferably, the water inlet and the water outlet are internally provided with metal sleeves, the metal sleeves inwards penetrate along the length direction of the core to form a water inlet waterway and a water outlet waterway, the water inlet waterway is communicated with the flow cavity, and the water outlet waterway is communicated with the flow cavity.

By adopting the technical scheme, the metal pipe sleeve is connected with the water inlet and the water outlet, and plays a role in sealing and connecting.

Preferably, the flow cavity comprises a mixing cavity, a water inlet cavity and a water outlet cavity, the mixing cavity is arranged at the axis position of the core, the mixing cavity extends inwards along the axis direction of the core, the water inlet cavity and the water outlet cavity are communicated with two sides of the width direction of the mixing cavity, the water inlet cavity is communicated with a water inlet waterway, and the water outlet cavity is communicated with a water outlet waterway.

By adopting the technical scheme, the water inlet cavity and the water outlet cavity can prevent cooling water from directly entering the mixing cavity, and the cooling water is buffered.

Preferably, the cross section of the mixing cavity is circular, the cross section of the air exhaust block is semicircular, the cross sections of the water inlet cavity and the water outlet cavity are arc-shaped, and the water inlet cavity and the water outlet cavity are both positioned in the projection area of the air exhaust block.

By adopting the technical scheme, the exhaust block plays a role in sealing the water inlet cavity, the water outlet cavity and the mixing cavity.

Preferably, the bottom of the mixing cavity is hemispherical, one end of the metal pipe sleeve, which is positioned in the side core, is provided with a chamfer, and one end of the metal pipe sleeve, which is positioned outside the side core, is provided with a quick connector.

Through adopting above-mentioned technical scheme, the mixing effect in hemispherical hybrid chamber is better, and the chamfer of tip makes things convenient for the insertion of metal pipe box, and quick-operation joint is convenient for the connection of condenser tube and wet return simultaneously.

Preferably, the linear driving part comprises a cylinder, the cylinder comprises a shell and a driving shaft, the driving shaft is connected with the connecting structure, and the shell is connected with the bracket.

Through adopting above-mentioned technical scheme, the drive shaft passes through connection structure and is connected with the side core, and the cylinder passes through the removal of drive shaft, the removal of drive side core.

Preferably, the support comprises a locating plate, a connecting rib plate and a sliding plate, one side of the locating plate is connected with the end face of the shell, a mounting hole for a driving shaft to pass through is formed in the locating plate, one side of the connecting rib plate is connected with the movable mould plate, the other side of the connecting rib plate is connected with the other side of the locating plate, a guide groove is formed in the sliding plate, the guide groove extends along the moving direction of the driving shaft, and a guide block matched with the guide groove is arranged on the connecting structure.

Through adopting above-mentioned technical scheme, the locating plate plays the effect of connecting and supporting the cylinder, and the connection floor plays the effect of being connected locating plate and movable mould board, and the sliding plate plays the effect of direction to connection structure's removal.

Preferably, the connecting structure comprises a first connecting plate, a connecting bolt and a second connecting plate, wherein a fixing hole matched with the connecting bolt is formed in the first connecting plate, a threaded hole matched with the connecting bolt is formed in the side core, the first connecting plate is connected with the side core, one end of the second connecting plate is connected with the first connecting plate, and the other end of the second connecting plate is connected with the end portion of the driving shaft.

Through adopting above-mentioned technical scheme, connecting bolt plays the effect of connecting side core and first connecting plate, and the second connecting plate plays the effect of connecting first connecting plate and drive shaft simultaneously, realizes the drive shaft and removes the in-process, the removal of control side core.

Preferably, the second connection plates are disposed at the center or both sides in the width direction of the first connection plates.

By adopting the technical scheme, two connecting modes of the driving shaft and the first connecting plate are disclosed.

Preferably, the support further comprises a limiting plate, the limiting plate is arranged on the movable die plate, the surface of the limiting plate is sunken downwards to form a limiting groove, the limiting groove penetrates through the positioning plate, the end portion of the second connecting plate is matched with the limiting groove, and the limiting groove limits the maximum stroke of the second connecting plate.

Through adopting above-mentioned technical scheme, limiting plate restriction second connecting plate is at the maximum travel range of removal in-process, plays the effect of location to the compound die of side core, avoids striking between side core and the core.

In summary, after the movable mold plate and the fixed mold plate relatively move, the mold core and the mold cavity are relatively closed, in the process, the linear driving part of the side core pulling mechanism drives the side core to move in the core pulling track through the connecting structure, so that the side core is attached to the surface of the mold core, after die casting is completed, cooling water enters the flow cavity through the water inlet, the cooling water in the flow cavity plays a role in fully cooling the side core, meanwhile, the cooling water in the flow cavity flows back through the water outlet to enable the cooling water to be continuously fed into the flow cavity, the side core is cooled, in the cooling process, due to the fact that the side core is contacted with metal melt, the temperature is higher, steam generated in the cooling process is discharged outwards through the exhaust block, the pressure in the flow cavity is prevented from being too high, and the pressure influence on the pipeline interface and the hose is reduced.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic view of the embodiment with the stationary die plate removed;

FIG. 3 is a schematic view of an embodiment with the mandrel removed;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic structural view of a side core of an embodiment;

FIG. 6 is a schematic cross-sectional view of an embodiment in a connection configuration position;

in the figure, 11, a movable mould fixing plate; 12. a movable template; 13. a stationary mold plate; 14. a material injection port; 2. a side core pulling mechanism; 21. a side core; 22. core pulling tracks; 23. a linear driving section; 24. a housing; 25. a drive shaft; 3. a bracket; 31. a positioning plate; 32. connecting rib plates; 33. a sliding plate; 34. a guide groove; 35. a limiting plate; 36. a limit groove; 41. a first connection plate; 42. a guide block; 43. a fixing hole; 44. a threaded hole; 45. a second connecting plate; 5. an opening; 51. an exhaust block; 52. a water inlet; 53. a water outlet; 54. a flow chamber; 55. a mixing chamber; 56. a water inlet cavity; 57. a water outlet cavity; 58. a metal tube sleeve; 581. chamfering; 582. a water inlet waterway; 583. and (5) a water outlet waterway.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Examples:

as shown in fig. 1 to 6, a side core pulling structure of a die casting mold for an automobile engine support comprises a movable mold fixing plate 11, a fixed mold fixing plate, a movable mold plate 12, a fixed mold plate 13, a mold core, a cavity and a material injection port 14, wherein the movable mold plate 12 is arranged on the movable mold fixing plate 11, the fixed mold plate 13 is arranged on the fixed mold fixing plate, the mold core and the material injection port 14 are arranged on the fixed mold plate 13, the cavity is arranged on the movable mold plate 12, and in the die casting process, molten metal is cooled and molded between the mold core and the cavity through the fixed mold fixing plate and the fixed mold plate 13.

As shown in fig. 1, the side core pulling mechanism 2 is further included, and the side core pulling mechanism 2 includes a side core 21, a core pulling rail 22, a connecting structure, a linear driving part 23 and a bracket 3; as shown in fig. 2, the side core 21 is disposed between the molding surface of the core and the molding surface of the cavity, in order to show the shape of the side core 21, both the core and the cavity are hidden, one side in the width direction of the core-pulling rail 22 is formed by the concave surface of the stationary platen, that is, the core-pulling rail 22 extends into the stationary platen, the other side in the width direction of the core-pulling rail 22 is formed by the concave surface of the movable platen 12, one end in the length direction of the core-pulling rail 22 extends to the side core 21, the other end in the length direction of the core-pulling rail 22 extends to the linear driving portion 23, the bracket 3 is disposed on the movable platen 12, one end of the connecting structure is connected with the linear driving portion 23, the other end of the connecting structure is connected with the core, the linear driving portion 23 is disposed on the bracket 3, and the linear driving portion 23 drives the core to move in the core-pulling rail 22 through the connecting structure, so that the core enters or leaves between the core and the cavity.

As shown in fig. 1 and 2, the linear driving part 23 in the present embodiment employs a cylinder including a housing 24 and a driving shaft 25, the driving shaft 25 being a piston rod, and the housing 24 being connected to the bracket 3.

The specific structure of the connection structure for connecting the driving shaft 25 and the side core 21 is that, as shown in fig. 2 and 6, the connection structure includes a first connection plate 41, a connection bolt and a second connection plate 45, a fixing hole 43 matched with the connection bolt is provided on the first connection plate 41, a threaded hole 44 matched with the connection bolt is provided on the side core 21, the side core 21 is connected and locked with the first connection plate 41 through the connection bolt, the first connection plate 41 is connected with the side core 21, one end of the second connection plate 45 is connected with the first connection plate 41, the other end of the second connection plate 45 is connected with the end of the driving shaft 25, the second connection plate 45 has two arrangement structures, namely, the second connection plate 45 is arranged at the center of the first connection plate 41 or at two sides in the width direction, in this embodiment, the second connection plate 45 is arranged at the center of the first connection plate 41, and a trapezoid groove pair is provided on the first connection plate 41 to fix the second connection plate 45.

As shown in fig. 1 to 5, in order to fix the side core pulling mechanism 2 to the movable die plate 12, the bracket 3 includes a positioning plate 31, a connecting rib plate 32 and a sliding plate 33, one side of the positioning plate 31 is connected to the end face of the housing 24, a mounting hole through which the driving shaft 25 passes is provided in the positioning plate 31, one side of the connecting rib plate 32 is connected to the movable die plate 12, the other side of the connecting rib plate 32 is connected to the other side of the positioning plate 31, a guide groove 34 is provided in the sliding plate 33, the guide groove 34 extends along the moving direction of the driving shaft 25, and a guide block 42 matched with the guide groove 34 is provided on the connecting structure.

As shown in fig. 1 and 6, in order to limit the movement of the side core 21, the support 3 further includes a limiting plate 35, where the limiting plate 35 is disposed on the movable mold plate 12, that is, the limiting plate 35 is disposed at an end of the core pulling track 22, the surface of the limiting plate 35 is recessed downward to form a limiting groove 36, the limiting groove 36 is disposed through the positioning plate 31, so that the second connecting plate 45 moves outwards, and meanwhile, the second connecting plate 45 moves forwards and is limited by the end of the limiting groove 36, the end of the second connecting plate 45 is matched with the limiting groove 36, and the limiting groove 36 limits the maximum stroke of the second connecting plate 45.

As shown in fig. 2 to 5, the waterway structure for cooling the side core 21 includes an air discharging block 51, a water inlet 52, a water outlet 53 and a flow chamber 54, wherein the air discharging block 51 is made of air discharging steel, the air discharging block has the function of blocking water flow and allowing air to pass through after the air pressure rises, the flow chamber 54 is arranged in the core, the flow chamber 54 penetrates through the front end of the core to form an opening 5, the air discharging block 51 is arranged on the opening 5, the water inlet 52 and the water outlet 53 are respectively arranged at the tail end of the core, and the water inlet 52 and the water outlet 53 are communicated with the flow chamber 54.

As shown in fig. 2 to 5, a metal pipe sleeve 58 is arranged in the water inlet 52 and the water outlet 53, a chamfer 581 is arranged at one end of the metal pipe sleeve 58, which is positioned in the side core 21, a quick connector is arranged at one end of the metal pipe sleeve 58, which is positioned outside the side core 21, the metal pipe sleeve 58 plays a role of connecting the water inlet 52 and the water outlet 53, and is more difficult to separate from the water inlet 52 and the water outlet 53 after being heated and expanded, the metal pipe sleeve 58 penetrates inwards along the length direction of the core to form a water inlet waterway 582 and a water outlet waterway 583, the contact area between the metal pipe sleeve 58 and the side core 21 and the first connecting plate 41 is enlarged, the connection effect is improved, the water inlet waterway 582 is inwards communicated with the flow cavity 54, and the water outlet waterway 583 is inwards communicated with the flow cavity 54.

As shown in fig. 4, in order to improve the cooling effect, the residence time of the cooling water in the flow chamber 54 is prolonged, the flow chamber 54 includes a mixing chamber 55, a water inlet chamber 56 and a water outlet chamber 57, the mixing chamber 55 is arranged at the axial position of the core, the bottom of the mixing chamber 55 is hemispherical, the mixing chamber 55 extends inwards along the axial direction of the core, the water inlet chamber 56 and the water outlet chamber 57 are both communicated with two sides of the mixing chamber 55 in the width direction, the water inlet chamber 56 is communicated with a water inlet waterway 582, and the water outlet chamber 57 is communicated with a water outlet waterway 583; the cross section of the mixing cavity 55 is circular, the cross section of the air discharging block 51 is semicircular, the cross sections of the water inlet cavity 56 and the water outlet cavity 57 are arc-shaped, and the water inlet cavity 56 and the water outlet cavity 57 are both positioned in the projection area of the air discharging block 51.

Working principle:

after the movable mold plate 12 and the fixed mold plate 13 relatively move, the mold core and the mold cavity are relatively closed, in the process, the linear driving part 23 of the side core pulling mechanism 2 drives the side core 21 to move in the core pulling track 22 through the connecting structure, so that the side core 21 is attached to the surface of the mold core, after die casting is finished, cooling water enters the water inlet cavity 56 through the metal sleeve in the water inlet 52 and then flows into the flow cavity 54, and because the flow cavity 54 is arranged in the side core 21, the cooling water plays a role of sufficiently cooling the side core 21 in the flow cavity 54, and then the cooling water in the flow cavity 54 flows to the water outlet 53 through the water outlet cavity 57; during the cooling process, the cooling water generates steam in the mixing chamber 55, and the steam is discharged to the outside through the air discharging block 51.

Claims (10)

1. The utility model provides a car engine support die casting die side structure of loosing core, includes movable mould fixed plate (11), cover half fixed plate, movable mould board (12), cover half board (13), core, die cavity and annotates material mouth (14), movable mould board (12) set up on movable mould fixed plate (11), cover half board (13) set up on the cover half fixed plate, core and annotate material mouth (14) setting on cover half board (13), the die cavity sets up on movable mould board (12), its characterized in that: comprising

The side core pulling mechanism (2), the side core pulling mechanism (2) comprises a side core (21), a core pulling track (22), a connecting structure, a linear driving part (23) and a support (3), wherein the side core (21) is arranged between a molding surface of a core and a molding surface of a cavity, one side of the core pulling track (22) in the width direction is formed by a concave surface of a fixed die plate, the other side of the core pulling track (22) in the width direction is formed by a concave surface of a movable die plate (12), one end of the core pulling track (22) in the length direction extends to the side core (21), the other end of the core pulling track (22) in the length direction extends to the linear driving part (23), the support (3) is arranged on the movable die plate (12), one end of the connecting structure is connected with the linear driving part (23), the other end of the connecting structure is connected with the core, the linear driving part (23) is arranged on the support (3), and the core is driven by the connecting structure to move in the core pulling track (22) so as to enter or leave between the core and the cavity;

waterway structure, including exhaust block (51), water inlet (52), delivery port (53) and flow chamber (54), flow chamber (54) set up in the core, flow chamber (54) run through to the core front end and form opening (5), exhaust block (51) set up on opening (5), water inlet (52) and delivery port (53) set up respectively at the end of core, water inlet (52) and delivery port (53) all communicate with flow chamber (54).

2. The automobile engine support die casting die side core pulling structure according to claim 1, wherein: the water inlet (52) and the water outlet (53) are internally provided with a metal pipe sleeve (58), the metal pipe sleeve (58) inwards penetrates through to form a water inlet waterway (582) and a water outlet waterway (583) along the length direction of the mold core, the water inlet waterway (582) is communicated with the flow cavity (54), and the water outlet waterway (583) is communicated with the flow cavity (54).

3. The automobile engine support die casting die side core pulling structure according to claim 2, wherein: the flow cavity (54) comprises a mixing cavity (55), a water inlet cavity (56) and a water outlet cavity (57), the mixing cavity (55) is arranged at the axial position of the core, the mixing cavity (55) extends inwards along the axial direction of the core, the water inlet cavity (56) and the water outlet cavity (57) are communicated with two sides of the width direction of the mixing cavity (55), the water inlet cavity (56) is communicated with a water inlet waterway (582), and the water outlet cavity (57) is communicated with a water outlet waterway (583).

4. The automobile engine support die casting die side core pulling structure according to claim 3, wherein: the cross-sectional shape of the mixing cavity (55) is circular, the cross-sectional shape of the exhaust block (51) is semicircular, the cross-sectional shapes of the water inlet cavity (56) and the water outlet cavity (57) are arc-shaped, and the water inlet cavity (56) and the water outlet cavity (57) are both positioned in the projection area of the exhaust block (51).

5. The automobile engine support die casting die side core pulling structure according to claim 4, wherein: the bottom of mixing chamber (55) is hemispherical, one end that metal pipe cover (58) is located in side core (21) is provided with chamfer (581), one end that metal pipe cover (58) is located outside side core (21) is provided with quick-operation joint.

6. The automobile engine support die casting die side core pulling structure according to claim 1, wherein: the linear driving part (23) comprises an air cylinder, the air cylinder comprises a shell (24) and a driving shaft (25), the driving shaft (25) is connected with the connecting structure, and the shell (24) is connected with the bracket (3).

7. The automobile engine support die casting die side core pulling structure according to claim 6, wherein: the support (3) comprises a locating plate (31), a connecting rib plate (32) and a sliding plate (33), one side of the locating plate (31) is connected with the end face of the shell (24), a mounting hole for a driving shaft (25) to pass through is formed in the locating plate (31), one side of the connecting rib plate (32) is connected with the movable mould plate (12), the other side of the connecting rib plate (32) is connected with the other side of the locating plate (31), a guide groove (34) is formed in the sliding plate (33), the guide groove (34) extends along the moving direction of the driving shaft (25), and a guide block (42) matched with the guide groove (34) is arranged on the connecting structure.

8. The automobile engine support die casting die side core pulling structure according to claim 7, wherein: the connecting structure comprises a first connecting plate (41), a connecting bolt and a second connecting plate (45), wherein a fixing hole (43) matched with the connecting bolt is formed in the first connecting plate (41), a threaded hole (44) matched with the connecting bolt is formed in the side core (21), the first connecting plate (41) is connected with the side core (21), one end of the second connecting plate (45) is connected with the first connecting plate (41), and the other end of the second connecting plate (45) is connected with the end portion of the driving shaft (25).

9. The automobile engine support die casting die side core pulling structure according to claim 8, wherein: the second connection plates (45) are provided at the center or at both sides in the width direction of the first connection plate (41).

10. The automobile engine support die casting die side core pulling structure according to claim 8, wherein: the support (3) further comprises a limiting plate (35), the limiting plate (35) is arranged on the movable die plate (12), a limiting groove (36) is formed by downwards sinking the surface of the limiting plate (35), the limiting groove (36) penetrates through the positioning plate (31), the end part of the second connecting plate (45) is matched with the limiting groove (36), and the limiting groove (36) limits the maximum stroke of the second connecting plate (45).